Dustless dross receptacle



Jan. 29, 1935. A H. LEVY DUSTLESS DROSS RECEPTAGLE Filed Feb. 10, 1955INVENTOR L Leg A ORNEY Patented Jan. 29, 1935 UNITED STATESPIATVENTIOFFICE DUSTLESS nnoss REOEPTACLE A Hoyt Levy, Brooklyn, N. Y.Application February 10, 1933, Serial No. 656,141

Claims. (01. 220-35) This invention relates to receptacles fordustengendering materials and is of particular utility when applied to areceptacle for the fine, powdery dross which accumulates upon thesurface of molten lead or lead alloys, although I conteme plate the useof the invention in any field for which it may be adapted by the natureof the improvements disclosed herein.

Heretofore, such dross, when skimmed from the molten metal by means of aladle, has been usually deposited in an open-mouthed receptacle of theconventional drum type, from which the fumes or vapors emanating fromthe dross are free to rise, accompanied by the dusty components whichare characteristic of such refuse.

These dusty, vaporous emanations are of a poisonous nature and quitedetrimental to the health of operatives. Prior to my invention, noeffective means have been provided to confine the emanations and at thesame time permit convenient introduction of the dross into receptaclesof a standard type in which the dross can be accumulated for finaldisposition.

My invention contemplates the provision of a hood capable of applicationinterchangeably to any of a series of containers of the drum type, whichmay be of substantially conventional and relativelyinexpensive'structure, the hood being adapted to permit readyintroduction thereinto of a. dross-charged ladle or ladies repeatedly,and the discharge of the ladles charge into the container, until it hasreceived its full complement of the refuse, while confining the heated,vaporous and dusty emanations within the hood, and thus preventing thedeleterious effects already mentioned.

My invention further contemplates the provision, for the'above purpose,of a mural charging opening in one wall of the hood, with a closureurged yieldingly into a normally closed position, so that it will permitpassage of the ladle into the hood, but will act automatically to closethe charging opening upon withdrawal of the ladle, after the latter hasbeen inverted to discharge the dross through an opening provided in thebottom of the hood, this opening registering with the conventional topopening of the container.

In pursuance of a further object of the invention, means are provided tosupport the closure in suitable fashion, and to so construct the closurein the inner margin of the charging opening as to form a tight sealagainst escape of dust.

, The above, and other objects of the invention will be clear from thedescription which follows,

and from the drawing, wherein, I, Fig. 1 is a top plan view of areceptacle to which one form of my invention has been ap-' plied.

' Fig. 2 is a vertical section of the same, taken on the line 22 of Fig;1.

Fig. 3 is a horizontal section of the same, taken on the line 3 3'ofFig. 2.

Fig.4 is a view, similar to Fig. 1,01? 2. modi-' fied form of myinvention; I

Fig. 5 is a vertical section of the same.

Fig. 6 is a similar view of another modified form of my invention. 1 1 aIn the practical embodiment'of my invention which I have illustrated byway of example, the part designated by the reference character 11* is ametal container which may be, and preferably is, of the familiardrum"ty'p'e, only the upper portion'thereof being shown, as the lowerpart may be of usual cylindrical structure and does not requireillustration or description. h V

The upright walls of the container 11 preferably terminate in asubstantially conventional rim 12 surrounding the usual top-opening 13,and this rim serves, in pursuance of the invention, to support ahood-member 14 which is of suitable structure for combinationinterchange: ably with any of a plurality o'f containers 11 of the typebriefly described above.

The hood is made of suitable material, prefer ably sheet metal. Thecontainer is intended to receive dross inserted thereinto through an'opening 15 in the bottom of the hood, said opening being arranged ,toregister with the top-opening 13 of the container. g

The upstanding wall16 of the hood may desirably be approximatelycylindrical in general con tour, and vertical throughout at least aportion of its circumference,and tapering outwardly for the remainderthereof toward the top 17. A flange 18, depending from the top, may bewelded or otherwise suitably secured to the upper edge of the wall 16,although a removable cover may be employed, with suitablemeans to holdit in place, such as will readily occur to those skilled in the art,without departing from the spirit of this invention. r 1

In further pursuance of the invention, a mural charging opening 19 isprovided, at a convenient region, preferably in the front wall flat 20,to permit introduction of a charging ladle, as indicated-in dot-and-dashlines at 21, where the ladle is shown inverted, for discharge of thedross through the openings 15 and 13.

In order to provide means for complete enclosure of the hood, and thusprevent escape of the dusty, powdery dross or other refuse deposited inthe container 11, I have shown in Figs. 1-3, a closure 22, hingedswingingly at 23 upon a horizontal pintle 24 mounted in brackets 25welded or otherwise suitably secured to the cover member Said closure isso disposed as to be urged normally into closed position, thedisposition thereof being such, however, as to permit the closure toyield resistingly under the thrusting action of the ladle 21 during thecharging operation.

To accomplish this aim of the invention, the closure may begravity-urged, and/or springurged, toward its seat 26, which is shown inFig. 2 as formed by a flanged extension inwardly of the margin of thecharging opening 19.

The front wall 20 and flange 26 are shown as inclined inwardly from topto bottom, so that the closure 22 is urged by gravity against its seat26. The angle of inclination from the perpendicular need not be great,tocreate such a tight seal of the charging opening that no dust inpoisonous or disagreeable quantities can be emitted therefrom.

As a cognate means to prevent escape of deleterious matter from thecontainer, as well as to effect a sturdy and detachable connectionbetween the container 11 and hood 14, I prefer to form the hood with abase flange 27, adapted to enter a groove 28 in the rim 12 ofthecontainer, the upper lip 29 of the rim having cutaway portions atintervals to permit insertion and removal of the flange 28, which mayreadily be inserted into retentive position into the groove 28 and underthe lip 29.

Referring now to Figs. 4 and 5, I have there shown a modified form ofhood embodying my invention. In this modification, the front wall 30 isvertical, instead of being rearwardly and inwardly inclined, as in Figs.1 and 3, and the closure 32 hangs inperpendicular position in thecharging opening 31, being hinged upon'a horizontal pintle 34 carried bythe front wall 30 as by means of the bearings 33. 1 1

If desired, auxiliary spring means may be provided to urge the closuretoward its seat, and for this purpose, I have illustrated, as a furthermodification, a leaf spring 35, in Figs. 4 and 5, riveted to the top 47of the hood 44, and having one end engaged with the inner surface ofclosure 32.

Fig. 6 illustrates in clearer detail, the inside of the hood 44 with theclosure 32 hinged at 33 upon the pintle 34, all as shown in Figs. 4 and5, but with a horizontal spring 49 coiled thereonto aid in closingmovement of closure 32.

From the above description, it will'be clearly apparent that I haveprovided an effective means to dispose readily and safely of the dustydross, or analogous refuse accumulating on molten soft metals, and havethus accomplished the various aims of the invention by a convenient,imxpensive and standardized appliance, capable of meetingthe severerequirements of practical use.

g It will be understood that while I have illustrated and describedcertain preferred forms of my invention, I do not wish to be understoodas limiting myself thereto, but I intend to claim my invention asbroadly as may be permitted by the state of the prior art and the termsof the appended claims.

I claim:

1. The combination with a container of the drum type having a topopening surrounded by a horizontal inwardly projecting flangeterminating in an upwardly extending rim, of a protecting hood for thecontainer, said hood comprising an outwardly extendin' horizontal baseflange forming the base of said hood and of an outermost diameter lessthan that of the rim, and of an innermost diameter substantially equalto that of the top opening, the base flange being adapted to rest on theflange of the container and within the container rim to support the hoodand to form a seal between the hood and the container, a top on the hoodoverhanging the base flange throughout the circumference thereof exceptat its rearmost point, a wall joining the top and the base flange,

at the sides of the charging opening, said horizontal and triangularwalls projecting inwardly of the container'a distance not greater thanthe width of the base flange, and pivoted closure means for the chargingopening adapted to yield inwardly under displacement thereof by a ladleloaded with a charge of dross from molten lead or like metal.

2. A safety hood for use in combination with an open top container fordusty dross from molten lead or like refuse having a horizontal inwardlyprojecting flange, said hood having a horizontal, flat closed topoverhanging the base flange hereinafter mentioned throughoutsubstantially its entire circumference and a onepiece wall terminatingat its lower margin in a horizontal base flange adapted to engage andrest upon the horizontal flange of said container and within the limitsof the container and thereby to removably support the hood in thecontainer, said hood having .a mural charging opening, a narrow flatwall forming the bottom of the opening, triangular flat side Wallsextending from the closed top to the narrow flat wall and forming thesides of the opening, and a closure for said opening urged normallytoward a closed position but yieldable inwardly to permit introductionof an implement charged with said refuse, said flange surrounding a'base opening in the hood adapted to register with the top-opening ofsaid container throughout substantially the entire area thereof wherebythe charge can be deposited in the container by a single movement ofsaid implement.

3. The combination with a container having an opening in the topthereof, and an inwardly projecting horizontal flange surrounding theopening, of a removable covering hood for the container, comprising aflat horizontal top wall, a horizontally arranged base flange adapted torest on and within the periphery of the flange of the container, saidtop wall overhanging the flange, a partly cylindrical wall extendingbetween the top and the base flange and having a charging open-e ingtherein, fiat side walls at the sides of the charging opening, aninwardly extending horizontal marginal flat flange at the bottom of thecharging opening, said side walls and marginal flange being arranged atsubstantially right angles to the cylindrical wall, and a closurepivoted inside of the hood and larger than the'opening and adapted tonormally engage the inner peripheral edge of the marginal flange, saiddoor being swingable forwardly to permit the deposit of material in saidcontainer.

4. In a two-member receptacle for the purpose .set forth, a containermember provided with a horizontally grooved rim, and a hood memberhaving a generally upright wall opening therein, normally closed by aninwardly swingable closure thereon, and having a horizontal flangeadapted to enter the groove of the rim, and a top on said memberoverhanging said flange.

5. A container hood having a completely circular opening in the bottomthereof surrounded by an annular horizontal flange, adapted to fitwithin a container, and having a charging opening therein, formed by apair of flat spaced parallel side walls inclined downwardly and inwardlyand a horizontal flat bottom wall joining said side Walls, a pivotedclosure for the opening, a horizontal closure seat surrounding theopening and arranged above the flange, and a spring adapted to urge saidclosure toward its seat.

A HOYT LEVY.

